Contents
Food Passage and Intestinal Nutrient Absorption in Hummingbirds
William H. Karasov, Duong Phan, Jared M. Diamond, and F. Lynn Carpenter
Body Size and Condition, Timing of Breeding, and Aspects of Egg Production in Eastern Kingbirds
Michael T. Murphy
100 Years Ago in the Auk
The Auk
Metabolism, Growth, and Activity in Ad
Theresa L. Bucher, George A. Bartholomew, W. Z. Trivelpiece, and N.J. Volkman
Predation as a Selective Force on Foraging Herons: Effects of Plumage Color and Flocking
Gloria S. Caldwell
Notes and News
The Auk
The Relationship Between Body Mass and Survival of Wintering Canvasbacks
G. M. Haramis, J. D. Nichols, K. H. Pollock, and J. E. Hines
Search Tactics of Insectivorous Birds Foraging in an Australian Eucalypt Forest
Richard T. Holmes and Harry F. Recher
Fish Crow Predation on Eggs of the White Ibis at Battery Island, North Carolina
Mark A. Shields and James F. Parnell
The Social System of the Texas Green Jay
Douglas C. Gayou
Differential Timing of Spring Migration in Wood Warblers (parulinae)
Charles M. Francis and Fred Cooke
Abundance and Habitat Selection of Two American Kestrel Subspecies in North-central Florida
Petra Bohall-Wood and Michael W. Collopy
Behavioral and Ecological Correlates of Interference Competition among Some Hawaiian Drepanidinae
John H. Carothers
Seabird Geographic Variation: Similarity among Populations of Leach's Storm-petrel
Dennis M. Power and David G. Ainley
Olfactory Sensitivity of the Turkey Vulture (cathartes Aura) to Three Carrion-associated Odorants
Steven A. Smith and Richard A. Paselk
A Fixed-radius Point Count Method for Nonbreeding and Breeding Season Use
Richard L. Hutto, Sandra M. Pletschet, and Paul Hendricks
In Memoriam: Jean (theodore) Delacour
Ernst Mayr
In Memoriam: Robert Cunningham Miller, 1899-1984
Robert T. Orr
Covers
Front Matter
The Auk
Back Matter
The Auk
Short Communications
Is Long-distance Migration Possible for Soaring Hawks Using Only Stored Fat?
Neal G. Smith, David L. Goldstein, and George A. Bartholomew
Oomorphology: a New Method
Raivo M
Differential Digestion Rates of Prey by White-chinned Petrels (procellaria Aequinoctialis)
Sue Jackson and Peter G. Ryan
An Assessment of Ground-nest Depredation in a Catastrophically Disturbed Region, Mount St Helens, Washington
Douglas C. Andersen and James A. Macmahon
Brood Parasitism of Eastern Kingbirds by Brown-headed Cowbirds
Michael T. Murphy
A Taxonomic Reevaluation of the Plain Pigeon (columba Inornata)
Richard C. Banks
Airspeed and Heading of Autumnal Migrants Over Hawaii
Timothy C. Williams, Janet M. Williams, and Phillip D. Kloeckner
Calcarius Lapponicus Coloratus in the Aleutian Islands, Alaska
Daniel D. Gibson
Commentaries
Does Food Limit Clutch Size in Prairie Ducks?
David C. Duncan
Response to D C Duncan
Frank C. Rohwer
Design of Song Playback Experiments
Donald E. Kroodsma